Air conditioner



FIG. 1 is a front side view;

FIG. 2 is a topside view;

FIG. 3 is a right side view;

FIG. 4 is a left side view;

FIG. 5 is a rear side view; and,

FIG. 6 is a left-front side perspective view thereof. 

The ornamental design for the air conditioner, as shown. 